146421705 has 8 divisors (see below), whose sum is σ = 234274752. Its totient is φ = 78091568.

The previous prime is 146421683. The next prime is 146421757. The reversal of 146421705 is 507124641.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 146421705 - 2⁵ = 146421673 is a prime.

It is a nialpdrome in base 15.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4880709 + ... + 4880738.

It is an arithmetic number, because the mean of its divisors is an integer number (29284344).

Almost surely, 2^146421705 is an apocalyptic number.

146421705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

146421705 is a deficient number, since it is larger than the sum of its proper divisors (87853047).

146421705 is an equidigital number, since it uses as much as digits as its factorization.

146421705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9761455.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 146421705 is about 12100.4836680192. The cubic root of 146421705 is about 527.0702293746.

The spelling of 146421705 in words is "one hundred forty-six million, four hundred twenty-one thousand, seven hundred five".